How to fix the “Could not determine storage version; a valid storage connection or a version hint is required”

The Cause:

You’re cruising right along updating everything properly when all of a sudden you get an inexplicable

Could not determine storage version; a valid storage connection or a version hint is required

error

The Cause:

You’ve been upgrading and downgrading Entity Framework Versions.  The actual error has nothing to do with the error message listed above.

The Solution:

There really is no good solution to this, as I have spent the past six hours proving – the best thing to do is just to upgrade to Entity Framework 6 and find some other workaround for any other problem.

 

Written By Steve French

 

This entry was posted on Monday, June 3rd, 2013 at 9:36 pmand is filed under Uncategorized . You can follow any comments to this entry through the RSS 2.0 feed. You can leave a comment, or trackback from your own site.

3 responses to “How to fix the “Could not determine storage version; a valid storage connection or a version hint is required””

1. From the Nuget Package manager console, try re-installing the Entity Framework to a later version.
   PM> Install-Package EntityFramework

   This will update your web.config accordingly.

   Reply

2. Thank you for sharing. This error happened to me due to jumping around on multiple projects with different frameworks.

   Reply

3. This quick fix worked for me: http://stackoverflow.com/a/25205771

   Reply

 

 

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